Improvement in printing-presses



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- Leners Patent No. 98,088, 'dama Damm 21 1869.

IMPRQVEMENT m PRINTING-Panssn The Schedule referred to in these Letters Patent and making partof thersame.

To allfwhom it may concert:

Be it known that-I, CHARLES MoNTAeUn, of Boston, in the county of Suiolk, and State of Massachusetts, have invented certain new and useful Improve- ,ments in Printing-Presses; and, ,I do hereby declare the following to be a full, clear, and exact description of the same, taken in connection with the accompanying drawings, making a part of this specification, and ,the letters ot' reference marked thereon, in Which- Figure 1 is a side'elevation of my improved press. Figure 2 is an end elevation, with back girt` removed, and showingthe longitudinal girt, which forms the inner bearing of the crank-shaft 'in section. Figure 3 is a plan, with feed-table removed. Figure 4 is-a vertical section ou line y y. on iig. 2. Figure 5 isI a section on a crooked line, the upper port-ion being ent on line xx, and the lower portion on My invention relates, in the first place, to the means employed to automatically raise the impression cylinder, while the bed is moving in one direction, and lower it again while the bed is moving in the other direction, and also to the means provided for arresting the impression at the will ofthe operator; and con-- sists in hanging the impression cylinder in bearings on radius arms or levers, one end of each of which is pivoted tothe frame, so that the lever shall be in nearly a. horizontal position, the movable end of said levers being attached to' bars or rods iitted to slide in bearings attachedto the frames, and provided with a pin at the lower ndot each, which lits into vibrating cams, which are 'operated .by a dog, pivoted to the side ofthe bed, as will be more fully described.

lt also consists 'in the use'of a movable wedge, so arranged,in combination with the dog above named, that it will be inoperative during a great portion of the time, but so that it may he moved into a position in the path of said dog, so that as the bed moves from the front to the rear,'the dog will be .lifted thereby -and made to pass over the vibrating camwithout moving it, an'd thus allow the cylinderto be held in its-raised position during the movement of' the bed 'from front to rear, and thus prevent an impression being given, at the will of the operator.

My .invention relates, in the second place, to the mechanism for operating the nippel-s; and consists in the use, in combination with a reciprocating bed, op

erated by an extensible vibrating lever, of an arm, attached to one' end of the nipper-shaft by its middle, one side of which is provided with a lip, slightly curved at each end and placed in suoli a position that the revolution of the cylinder will cause it to strike a pin xed in the frame at a point somewhat nearer the axis of the Cylinder than-the axis of the nipper-shait, and open the nippers, preparatory to being closed upon a sheet, the operation of rotating the nipper-shaft and holding the sheet on the cylinder being greatly facilitated byjtheuse of a spring, which will be described hereafter. 1

It also consists in the use, in combination with said bed and cylinder, operated as above described, ot' a movable piu, placed somewhat further from the axis of ,the cylinder than the nippershaft, by means of which the nipper-shaft may be rotated in the opposite direction, and, close the nippers on.- to the sheet, said pin being connected to a lever, which is acted upon by a cam surface or wedge on the edge of the bed in such a manner that the nippers will be closed but once td every tworevolutions of the cylinder.

In the drawings- A represents the side frames of the machine, connected together by the tie-girts A. u

Bis the type-bed, fitted to lnove on slides O, and

portion being attached .to the rocker shaft D1, and the upper portion l)2 being fitted to suitable bearings in the lower portion, so that it may move'out of or into the lower portion D, and so that, as its upper end' being attached to the under side ofthe bed, moves in a straight line when said lever is moved by the action of the crank E, andits pin a and the blockv b working in the slot c, the lengthof thewhole lever will constantly vary, according to theposition of the bed.

Fis the maincrauk-shaft; and G is a gear-wheel, made fast to the cuter end of said shaft, and is driven by the pinion H, and hand-crank I, or a pulley may be substituted forthe crank I, and the machine be driven by steam or water-power.

J is a gear-wheel, fitted to revolve on a stud set in thestand K, in such a manner that the axis of the gear-wheel J vshall be ecce'ntric to the axis of the crank-shaft F'.

The gear-wheel J is provided with a crank-pin, d, projecting inwardly, and fitting into the slot c, cut in the gear-wheel G, and shown in dotted lines in fig. 1.

The length of the slotv e must beequal to double the distance between the centres of the gear-wheel J and the centre of the shaft G, added `to the diameter of the `pin d, andbe of the necessary form to give the required variableness to the rotation of the gear-wheel J, to give the requisite motion to the cylinder L, to insure its moving in exact unison with the type-bed during the whole time of taking an impression.

M, N, and O, are gear-wheels, through which the motion of the gear-wheel J is transmitted to the eylinder L, and are so arranged that the cylinder L may the frame, and attached by their upper ends to the lnovable ends of the radius arms a' and carrying-pins l c' c', at their lower ends, which fit into the cam-slotsl motion of one of said levers will be transmitted to the other.

i' is a cam, on the main crank-shaft, which, acting upon tll lower end ofthe lever c, raise-s the cylinder.

j is a dog, pivoted to olle edge of the hed in sllch a position that when the bed moves from front to rear, it will strike the upper` en d of the lever el, alld moving it till the pin c is in'tlle lowest portion of the slot d', when the cylinder will be in the propel' position to give impression to the slleet.

k is a spring, wedge, or cam, which is used to throw the dog 7" mt of gear, or prevent its action when it is desired to prevent a sheet from being printed, and l is a handle, by whiclrit is operated.

P is a rocker-shaft, to which the nippers g g are attached, and his an arln, made fast to one end of said shalt, by which it is rotated, and'i is a spring, at- 'tachettby one end to the end of the cylinder, while the other end is made fast to the arm h, and serves .the purpose of holding 'the nippers with considerable tension upon them, whether. they are closed or open.

j is a pin, fixed ill the iiame, which serves the purpose of opening the nippers by the striking of the arm h against it dining the revolution ot' t-he cylinder,

said cylinder rotating in the direction indicated by the arrow. v

k is a pin, so placed that the striking of the arm h against it will cause the rocker-shaft P to be revolved in the opposite' direction, and close the nippel-s on to the sheet.

Y Tile 'pin 7c is fitted to slide in a bearing-in `the Aframe, and is attached to the upper end of the lever l, hung Ymove the pin l into such a position tllat it will he struck by the arm h, and close the nippers.

o is a spring, which serves to. throw the pin 'klhaclr out ofthe path of the arm h, when the cam surface n has moved away from the pin m, and holds it there till the bed returns again and the cam sul-face ucornes in contact with the pin Am. y j

'The operatin'of my improved press is as follows:

vThe sheets being placed upon the feed-table, and

fed dowll to the nippersin the usual manuel', andthe machine heilig set ill mot-ion by revolving the crank I, the bed carrying the type-form will be moved ti'om the rear of the machine to the front, and passing under the hiking-rollers (not shown in the'drawings) while the crank F is moving through about one-third of its revolution, and that being the lower portion, and at about the time that the bed has arrived at the end of its movement inthatdirection, and while the cam surface n is holding the pin m, pushed out, and thereby holding the pin It ill the proper position, the cylinder, by its revollltion, will cause the arm h to 'strike the pin k, and cause the rocker-shaft ,P to be partially revolved, and close the nippers on tothe slleet and carry it around with the cylinder at the same time the bed y commences its return movement, and the dog coming in Contact with the upper end of the level' c, moves it, and by the action of the cam-slots d d lowers the cylinder on to the form. Just at this point, the m0.- tion of the bed and the impression cylinder is made to correspond, and continues so to do until the impression is completed, this correspondence being eiected by means ofthe two gears G and J, set eccentrifcally and connected bythe pin d and slot e.

The motion'of the machine being continued, the sheet will be carried around by the cylinder, nntilthe forward edge ofthe sheet has arrived at the proper point to be discharged, when the arm 71 on the nippel-shaft P, comes ill Contact with the pin j, and opens the nippel-s, and the sheet is taken oli' by mealls of tapes, not shown in the drawings, in the usual man- Beforetlle bed ret-urns to the fiont, the cam t comes in contact with the lower end of the lever c2, and by the action of the slots al' d. upon -the pins c c', raises the cylinder so that the bed alld form may pass under the cylinder without receiving any impression, and as the bed moves back, the dog passes over the lever-el without having any ei'ect upon it. v

It" the operator wishes to prevent the next sheet from being printed, lle will -press upon the handle l,

'which will spring the wedge k into the path ot' the dog j, and said dog will vbe raised up so that it will pass over the-lever e* without moving it, so that the l bed will pass under the cylinder while it is in a'raised position.

Having tlms fully described the construction and operation of my improved press,

What I claim as new, and desire to secure by Letrf ters Patent, is-

1. The combination of the cam-levers e' and c, dog

j', bed B, and cylinder L, constructed and operating substantially as described, for the purpose specified.

2. The spring wedge. k', for arresting the actioll of the dog j', constructed and opelatillg substantially as described, for the purpose specified. f

3. In combination, with a reciprocating type-bed, the cam-wedge a, pins lm. and k, level' l, spring o, and

l arm or dog h, constructed and operating substantially as described, for the purposes specified.

Executed at Boston, this 11th day of June, A. D.

CHAS. MONTAGUE,

NVi't-nesses: 4

N. (l'LoMB'AeD, FRANK ALLEN. 

